Supplemental spring.



H. UEE/IU. SUPPLEMENT/II. SPRING. APPLICATION FILED JUNE 30y195. L'h Patented Dot. 29, 1918` 4 SHEETS-SHEET I.

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HIS ATTORNEY /N FACT SUPPLEFMENTALl SPRING. Y APPucATmN HLEn |uNE30,1915.

3,2%?, Patented oct. 29, 1918.`

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RQ LIEBAU.

SUPPLEMENTAL SPRING.

v APPLICATION` FILED IUNE 30| |915- l I Y Patented oet. 29, 1918..

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RICHARD LIEBAU, or NEW HAVEN, CONNECTICUT, assIGNo-su 'ro THE WESTINGHOUSE am SPRING COMPANY, A CosroRA'roN or PENNSYLVANIA.

SUPPLEMENTAL SPRING.

To all whom t may concern:

Be it known that I, RICHARD LIEBAU, a citizen of the United States, and a resident of New Haven, in the county of New Haven and State of Connecticut, have made a n ew and useful Invention in Supplemental Springs, ot' which the following is a specieation.

This invention relates to supplemental springs foruse with the leaf springs of vehicles such automobiles.

In an application iled by George lVestinghonse on February 21, 1912, and serially numbered 679,029 a vehicle air spring is shown, and this invention relates more particularly to the means for applying' such an air spring to a vehicle utilizingleaf springs in which the lower leafis the mainleat', such as in certain forms of cantaliver springs and the springs used on the. Ford car. y

An object of this invention is to-produce efficient means for mounting supplemental telescopic springs between'the vehicle running gear and the ends of the leatsprings connected with the vehicle load platform. This, as well as other objects, which will readily appear to those skilled in this art, I accomplish by means of the device illustrated in the drawings accompanying the lspecification and forming part of this application andthroughout which similar elements are denoted by like characters.

In the drawings, Figure 1 is a view partially in sectional elevation of a device embodying this invention;

Fig. 2 is an outline drawing of the saine; and

Figs. 3, 11, 5, 6, and 7 are detail views of portions of the device.

For the purposes of this application, I have shown this invention applied to a Ford ear, but without any intention, however, of limiting its use to such a car.

In the drawings, 8, which is in dotted line, represents the rear aXle of a Ford car and to this a bracket 9 is secured by means of a clip 10 bolted thereto 4and which surrounds the axle, and by means ot' a steadying stud 11 and nut 12. The stcadying stud 11 projects through the brake drum flange 13 and the nut 12`is located on the inside of the brake drum. The bracket 9 is shown in detail in Figs. 5, G and 7 and is provided at its top with an internally threaded buss: '14

Specification of Letters Patent.

A `Patented @ein 299.,

. f i Application led June 30, 1915. Serial No. 37,209.

i' carried by a cross member 15 Isupported by the uprights 16. Screwed in the boss 14 is the bottom-17 of one member 18 oli' the telescopic air spring.

In a general Way the air spring consists ot' member 18, a me1nber19 telescopin'g within member 18 and carrying a plunger-'head 20, and provided with valves and pumpingl mechanism. Surrounding member 18 is a guard'member or cylinder 21 and this at its lower end is provided with a depending toot 22 formed into a saddle 23 for the reception 0f one end 24 `of the leaf' spring. Guard 21 is slotted, as shown in Figs. 2 and 3at 25, so as to accommodate uprights 1G during the compression and extension movements of the air spring. 1

The lower `inner surface of sacldle123is approximately V shaped, the 'facing being..

arched to allow the leaf spring toroll a liniitcd amount with reference to thevaxle 8 sov as to prevent binding between the steel spring and the air spring. The V torni given to the saddle is such as to prevent unN due swaying of the vehicle body. In assembling the device the air spring with the depending saddle as illustrated in Fig. l is tipped to such a position that the saddle may be inserted into the opening between uprights 16, the under face of boss 14, and cross member 26, so that when inserted and straightened the lower threaded end 17 may be screwed into boss 1li so as to make bracket 9 and cylinder 18 of the air spring one meinber.

When installed on the car as shown in Figs. 1 and 2 and the air spring has been pumped t0 the proper pressure to support the vehicle body or load platform in normal mid position, the parts will take the position shown in Figs. 1 and 2.

It will be seen that instead of an air spring an ordinary spiral compression steel spring may be substituted. If this is done, a cylindrical guide vfor retaining the steel spring in position can be secured te boss 14 and an outer or dust guard similar to guard 21 having the same depending saddle can beutilized.

In accordance with the provisions of the patent statutes I have described the principle of operation of my invention togetherl with the device which I now consider to represent the best, 'embodiment thereof, but I desire to have iti'inderstood that the device adapted to be secured to vshown is only illustrative and that the invention can be carried out in other ways.

Having Athus described my invention, Whatspring carried by the running gear and havlng a saddle located below itself and within which one end of said leaf spring is slidably mounted.

2. The combination with a vehicle running gear, of a leaf Spring and a telescopic air spring, one member of which is secured to the running gear and the other member of which is provided with a depending saddle within which one end of the leal` Spring rides.

3. A telescopic air spring .one member of which is secured to the running gear' and the other membenof which is provlded with a depending saddle within' which one end of.

the leaf spring rides.

4. The' combination with a vehicle runnin gear, of a leaf spring the lower leaf of whic the main lea and a supplemental spring, one member of which is secured to the running gear and the other member of which is provided with a depending saddle within which one end of the leaf s ring slides.

5. A telescopic air spring avmg a cylinder the running ear o a vehicle, a plunger head teleseoplcly arrimase? connected to said plunger head and provided with a seat for one end ofthe vehlele steel ranged within the-said cylinderiandaisaddle z telescopic spring carried by said"s'i1pport,

another member of said. telescopio sprin telescopically arranged with relation to sai first member and carrying a saddle provided l with a seat, constructedand arranged to slidably receive the end of a 'leaf sprmg.

8. In combinationl with a vehicle axle, a support secured to said axle, la -telescopic spring, one vmember of which 'is secured to said support and one' member-'of which is provided. with a depending saddle, constructed and arranged to slidably rec. fe the end 'of a steel spring, and a steel spring soarranged that one end thereof s ides4 within said saddle. I

In testimony whereof I have hereunto subscribed my name this 28th day of June, 1915. RICHARD LIEBAU.

Witnesses: J. EDWARD' Brees, "Meer `M. HALPIN. 

